As discussed earlier in this chapter, the var identifier was introduced in Java 10. With the latest version, Java 11, var can be used in implicitly typed Lambda expressions. This use of the var identifier is covered in Chapter 3, Java 11 Fundamentals.
Local variable syntax for Lambda parameters
by Dr. Edward Lavieri
Mastering Java 11 - Second Edition
- Title Page
- Copyright and Credits
- Dedication
- Packt Upsell
- Contributors
- Preface
- The Java 11 Landscape
- Technical requirements
- Understanding the Java platform's new versioning model
- Understanding the significance of Java 9
- Benefiting from changes introduced with Java 10
- Local variable type inference
- Consolidation of the JDK forest into a single repository
- Garbage collection interface
- Parallel full garbage collector for G1
- Application class-data sharing
- Thread-local handshakes
- Removal of the native-header generation tool (javah)
- Additional Unicode language-tag extensions
- Heap allocation on alternative memory devices
- Experimental Java-based JIT compiler
- Root certificates
- Benefiting from changes introduced with Java 11
- Summary
- Questions
- Further reading
- Discovering Java 11
- Technical requirements
- Improved contended locking
- Segmented code cache
- Smart Java compilation
- Resolving lint and doclint warnings 
- Tiered attribution for Javac 
- Annotations pipeline 2.0 
- New version-string scheme 
- Generating runtime compiler tests automatically 
- Testing class-file attributes generated by Javac 
- Storing interned strings in class-data sharing archives 
- Preparing JavaFX UI controls and Cascading Style Sheet APIs for modularization
- Compact strings 
- Merging selected Xerces 2.11.0 updates into JAXP 
- Updating JavaFX/Media to the newer version of GStreamer 
- HarfBuzz font-layout engine
- HiDPI graphics on Windows and Linux
- Marlin graphics renderer 
- Unicode 8.0.0
- Reserved stack areas for critical sections 
- Dynamic linking of language-defined object models 
- Additional tests for humongous objects in G1 
- Improving test-failure troubleshooting 
- Optimizing string concatenation 
- HotSpot C++ unit-test framework 
- Enabling GTK3 on Linux 
- New HotSpot build system 
- Consolidating the JDF forest into a single repository 
- Summary
- Questions
- Further reading
- Java 11 Fundamentals
- Technical requirements
- Working with variable handlers
- Import statement depreciation warnings
- Milling Project Coin
- Import statement processing
- Inferring local variables 
- Thread-local handshakes
- Heap allocation on alternative memory devices
- Root certificates
- Dynamic class-file constants
- Removal of the Java EE and CORBA modules
- Summary
- Questions
- Further reading
- Building Modular Applications with Java 11
- Migrating Applications to Java 11
- Technical requirements
- A quick review of Project Jigsaw
- How modules fit into the Java landscape
- Migration planning
- Advice from Oracle
- Runtime image changes
- Deploying your applications
- Useful tools
- Summary
- Questions
- Further reading
- Experimenting with the Java Shell
- Leveraging the Default G1 Garbage Collector
- Technical requirements
- Overview of garbage collection
- The pre-Java 9 garbage collection schema
- Collecting garbage with the new Java platform
- Persistent issues
- Summary
- Questions
- Further reading
- Microbenchmarking Applications with JMH
- Making Use of the Process API
- Fine-Grained Stack Tracing
- New Tools and Tool Enhancements
- Technical requirements
- Working with the HTTP client
- Understanding Javadoc and the Doclet API
- Changes to the Multiple JRE feature
- JavaScript Parser
- Multiple-release JAR files
- Java-level JVM Compiler Interface
- TIFF support
- Platform logging
- XML Catalogs
- Collections
- Platform-specific desktop features
- Enhanced method handling
- Enhanced depreciation
- The native header generation tool (javah)
- Summary
- Questions
- Further reading
- Concurrency Enhancements
- Security Enhancements
- Technical requirements
- Datagram Transport Layer Security
- Creating PKCS12 keystores
- Improving security application performance
- The TLS application-layer protocol negotiation extension
- Leveraging CPU instructions for GHASH and RSA
- OCSP stapling for TLS
- DRBG-based SecureRandom implementations
- Summary
- Questions
- Further reading
- Command-Line Flags
- Additional Enhancements to the Java Platform
- Future Directions
- Contributing to the Java Platform
- Assessment
- Other Books You May Enjoy
Local variable syntax for Lambda parameters
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